Mouthguard



FIG. 1 is a top plan view of a mouthguard showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof; and,

FIG. 5 is a side view thereof, the opposite side being a mirror image;

FIG. 6 is a sectional view take along line 6-6 in FIG. 1; and,

FIG. 7 is a sectional view taken along line 7-7 in FIG. 1.

CLAIM The ornamental design for a mouthguard, as shown and described.